用xib換掉storyboard

一、先到info.plist中把Main storyboard file base name這個tag拿掉

二、再到appDelegate的didFinishLaunchingWithOptions中加入rootViewController

例如

let navigationVC: UINavigationController = UINavigationController(rootViewController: yourViewController)

        

let frame = UIScreen.mainScreen().bounds

window = UIWindow(frame: frame)

        

window!.rootViewController = navigationVC

window!.makeKeyAndVisible()